Inventor
NAGASUNDARAM SEKHAR
US12 patents
⚠️ This page may combine multiple inventors who share the name “NAGASUNDARAM SEKHAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VISA INT SERVICE ASS
11 patentsUS9665722B2May 30, 2017
Privacy firewall
VISA INT SERVICE ASS316 citations98
US9547769B2Jan 17, 2017
Data protection hub
VISA INT SERVICE ASS23 citations93
US10515358B2Dec 24, 2019
Contextual transaction token methods and systems
VISA INT SERVICE ASS18 citations85
US9544134B2Jan 10, 2017
Searchable encrypted data
VISA INT SERVICE ASS13 citations83
US9978094B2May 22, 2018
Tokenization revocation list
VISA INT SERVICE ASS5 citations73
US10204227B2Feb 12, 2019
Privacy firewall
VISA INT SERVICE ASS1 citations72
US11664982B2May 30, 2023
Key management for multi-party computation
VISA INT SERVICE ASS3 citations71
US10972263B2Apr 6, 2021
Single node multi-party encryption
VISA INT SERVICE ASS5 citations71
US12500746B2Dec 16, 2025
Key management for multi-party computation
VISA INT SERVICE ASS0 citations61
US11811923B2Nov 7, 2023
Single node multi-party encryption
VISA INT SERVICE ASS1 citations61
US10586054B2Mar 10, 2020
Privacy firewall
VISA INT SERVICE ASS0 citations51